void main() {
  var television = new Television();
  television.activate();
  doSomething();
}

class Television {
  /// _Deprecated: Use [turnOn] instead._
  @deprecated
  void activate() {
    turnOn();
  }

  /// Turns the TV's power on.
  void turnOn() {
    print("monkey");
  }
}

@Todo('seth', 'make this do something')
void doSomething() {
  print('do something');
}

class Todo {
  final String who;
  final String what;

  const Todo(this.who, this.what);
}